SM5 Sprite Example

-- by default, Sprites do not have a height or width or even an image

Def.Sprite{
    OnCommand=function(self)

        --declare our variables
        local song, path, width, height;

        -- get the current song as a song object
        song = GAMESTATE:GetCurrentSong();

        -- if there is a song (if the variable is not nil) then...
        if song then

            -- then get that song's banner path
            -- if the banner path is empty, path will be an empty string like (but not nil)
            path = song:GetBannerPath();

            -- path shouldn't be nil, but check just in case
            if path then

                -- in this context, self is the Sprite object we are in
                -- we haven't loaded any image yet
                -- so use the Load() method and give it the path from above
                self:Load(path);


                -- now that we've loaded the image, it should have height and width
                width = self:GetWidth();
                height = self:GetHeight();

                -- do stuff with height and width now

            end
        end
    end
};